Air regulator for window ventilators



June 16, 1931. v. w. FREDERICK 24 AIR REGULATOR FOR wmnow VENTILATORS Filed March 25. 1930 2 Sheets-Sheet 1 V Invcnlor We ra/PmsoaP/cm 'A llomey June 16, 1931.. v. w. l. FREDERICK 1,810,324

AIR REGULATOR FOR WINDOW VENTILATORS Filed March 25, 19:50 2 sh e s-sh et 2 A "drug Patented June 16, 1931 VICTOR W. I. FREDERICK, OF BROOKLYN, NEW YORK AIR REGULATOR FOR WINDOW VENTILATORS Application filed March 25, 1930. Serial No. 438,816.

This invention relates to improvements in air regulators for window ventilators, and for use especially with the type of ventilator shown and described in my copending a plication Serial No. 386,709, filed August 11,

The primary object of the invention resides in a regulator attachment by which the entrance of fresh air into a room through my 1 window ventilator may be controlled as it is not possible to adjust the sash of the window to regulate the entrance of air as the said sash is always in tight engagement with the top of the ventilator. It will be appreciated that in cold inclement weather it may not be desirable to admit the maximum amount of fresh air into a room, while at other times it may be desired to completelyshut off the ventilator. My regulator attachment is therefore designed to restrict or completely shut off the admission of atmospheric or fresh air through the window ventilator.

Another object is to provide an air regulator embodying a frame adapted to snugly fit into the type of ventilator shown in the above mentioned copending application so as to lie upon the screened bottom thereof, and doors hingedly supported upon the frame for movement to either open or closed positions to regulate the entrance of fresh air through the screen body.

With these and other objects in view the invention resides in the certain novel construction, combination, and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claims, and are illustrated in the accompanying drawings, in which:

Figure 1 is a vertical transverse sectional view illustrating my air regulator in position upon a window ventilator.

Figure 2 is an enlarged detail sectional view.

46 Figure 3 is a detail perspective view of the air regulator per se, showing the ventilator in dot and dash lines.

Figure 4 is a detail perspective view illustrating the manner in which the doors are hingedly mounted in the frame and capable of being'locked or supported in an open posit-ion. Figure 5 is a detailverticaltransverse sectional view through the regulator attachment. 7

Referring to the drawings by reference characters, the numeral 10 designates a window ventilator of the type shown in the 7 above mentioned copending application, and which broadly includes a telescoping inrperforate casing 11 provided with downwardly inclined topwall 12, and a reversely inclined perforated or screen bottom wall 13. The construction of this particular window ventilator being clearly shown and described in the copending application, it is not believed necessary to go into detail on the structure and features of the same, although a slight difference exists in the form of ventilator shown in this application wherein the inclined top wall 12 is carried down to provide an overhang or shed 14.- for preventing rain water from finding its'way down the inclined top wall 12 and onto the screen bottom 13.

In practice, the ventilator is supported within the window frame 15 of a window and 75. held therein by the parting strip and lower sash'16; It is with this type of ventilator that my improved air regulator 17 is adapted for use, and which regulator isplaced upon the screen bottom 13 for the purpose of com- 'pletely shutting off the entrance of air through the screen bottom 13 intoa room, or for restricting or regulating the passage of air therethrough.

The air regulator 17 includes a rectangular metal frame 18, the ends thereof being provided with upstanding flangesf1919 for abutting the end wall of the casing 11 of 7 the. ventilator, while the rear side wall is-- provided with an inwardly and upwardly inclined flange 20 for flush engagement with the inside of the inclined top wall 12 0f the ventilator. The front longitudinal side of the frame 18 is provided with a down turned '95 flange 21, which flange snugly fits against the shut portion ofthe ventilator shown in Figure 1 of the drawings.

From the description thus far it willbe S en. that theregulator may be snugly fitted m into the ventilator and firmly supported upon the screen bottom 13 thereof.

The frame 18 is provided with a central longitudinal bar 22 which bridges the end in alike manner, a descriptionof one will suifice for the other. Each door 23 is pro vided with end flattened pintles 24 which are disposed beneath the base fiangesof angle irons 25 which are mounted'along the frame, the vertical flanges of the angle iron ventilator.

being designated'by the previously mentioned reference character 19. Engaging the under sideofrthe flat pintles 24 are flat springs 26,..one end of each spring being riveted to the frame, while the other-freeend is provided with a notch or groove 27 in which one of the side edges of the flat pintles 24 .seat when the doors are in closed position.

trance of air through said screen bottom when said doors are in a closed position, and for regulating the flow of air therethrough by opening either or both of said doors.

2. In combination with a window ventilator of substantially V-shaped configuration havingan inclined screen bottom wall, an air regulator including a frame supported upon said screen bottom wall, doors hinged to said frame for shutting off the entrance of air through said screen bottom when said doors are in a closed position, and for regulating the flow of 'airtherethrough by opening either or both of said doors, and means for supporting s'aid'doors in open position.

3. In combination with a window ventilator having an inclined imperfOrate top wall, and an oppositeiyinclined screen bottom wall, an air regulator supported upon said screen bottom wall including a frame, doors hinged in said frame for completely closing the frame 'opening'when the doorsare in closed position, and meansfor supporting said doors in an openposition on a plane substantially parallel to said inclined top wall.

In testimony whereof Iaffix my signature.

VICTOR IV. I. FREDERICK.

When the doors are swung to open-position, the flatleaf springs 26' serve to clampthe pintles 24 against the under side of the angle .bar'or frame portions 25.- From. the foregoing description it will be seen that when the doors 23' are in a closed position, they rest upon the frame 18 and therefore entirely close the frame opening, thus preventing the entrance of fresh air into a room-through the screen bottom 13 of the If itis desired to derive the full benefit of the ventilator, the doors 23 are I swung to an open position substantially parallel to the downwardly incllinedtop wall 12 of'th-e casing 11, whereupon the said doors permit of the free entrance of air into the room. In the event that it isdesired to restrict or regulate the entrance of air, either of the doors 23 may be moved to a closed position. I

' WVhile I have shown and described what I deem to be the most desirable embodiment of my invention, it is to be understood that certain of the details may be varied if desired, andI do not wish'to limit myself to anyliinited only-by the appended claims. 5

Having thus described the invention, what I claim as new and desire to secure by Let- I 'ters Patent is '1. In combination with a window ventilator of substantially V-shaped configuration havinganinclined screen bottom' wall, an air regulator including'a frame supported upon said screen bottom wall, and doors thing other than. the'whole ofmy invention,

=hingedto said :frame'forshutting off the en- 

